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MCQs

Total Questions : 560 | Page 1 of 56 pages
Question 1. During winter, nutrient-rich water is transferred from deep water to the
  1.    Upper surface layer
  2.    Atmospheric temperature
  3.    Middle layer
  4.    Sun's atmosphere
 Discuss Question
Answer: Option A. -> Upper surface layer
Answer: (a).Upper surface layer
Question 2. Surface layers of water play a large part in the
  1.    C cycle
  2.    N cycle
  3.    P cycle
  4.    O cycle
 Discuss Question
Answer: Option A. -> C cycle
Answer: (a).C cycle
Question 3. 12C isotop forms an ordinary oxygen, approximately
  1.    0.789
  2.    0.989
  3.    0.809
  4.    0.909
 Discuss Question
Answer: Option B. -> 0.989
Answer: (b).0.989
Question 4. IPCC' stands for
  1.    Intergovernmental Panel on Climate Chang
  2.    Interpakistan Council Center
  3.    Inter Panel for Climate Change
  4.    International Panel on Climate change
 Discuss Question
Answer: Option A. -> Intergovernmental Panel on Climate Chang
Answer: (a).Intergovernmental Panel on Climate Chang
Question 5. Both respiration and photosynthesis occur in the
  1.    Ocean
  2.    Land
  3.    Atmosphere
  4.    Air
 Discuss Question
Answer: Option A. -> Ocean
Answer: (a).Ocean
Question 6. According to a general survey, One in five Americans would be more at risk in developing:
  1.    Skin Cancers
  2.    Cataracts
  3.    Asthma
  4.    Bone Cancer
 Discuss Question
Answer: Option A. -> Skin Cancers
Answer: (a).Skin Cancers
Question 7. Depletion of ozone layer published in scientific journals, in
  1.    1950s
  2.    1990s
  3.    1970s
  4.    1980s
 Discuss Question
Answer: Option D. -> 1980s
Answer: (d).1980s
Question 8. Bromine' is more effective in destroying CFCs than
  1.    Chlorine
  2.    PAN
  3.    Feron 11
  4.    Argon
 Discuss Question
Answer: Option A. -> Chlorine
Answer: (a).Chlorine
Question 9. In 1992, a team of forty scientist, announced a record high concentration of
  1.    Chlorine monoxide
  2.    Carbon monoxide
  3.    Hydrogen monoxide
  4.    Carbon dioxide
 Discuss Question
Answer: Option A. -> Chlorine monoxide
Answer: (a).Chlorine monoxide
Question 10. An increase in exposure to ultraviolet radiations, may cause
  1.    eye sight weakness
  2.    Lungs infection
  3.    Allergies
  4.    Cataracts
 Discuss Question
Answer: Option A. -> eye sight weakness
Answer: (a).eye sight weakness

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